From Washington National Airport

1. Go North on George Washington Parkway to South I-395 (2.1 miles)
2. Go South on I-395 to the intersection with the beltway, where I-395 becomes I-95 South (9.6 miles)
3. Go South on I-95 until exit 150A (12 miles)

From Dulles Airport

1. Go East on Dulles Access road (tolls) to Leesburg Pike (13.3 miles)
2. Go East On Leesburg Pike to I-495 (26.6 miles)
3. Go South on I-495 to I-95 (9.8 miles)
4. Go South on I-95 until exit 150A (12 miles)

From Baltimore/Washington Airport (BWI)

1. Go South on I-395 to I-95 (1.1 miles)
2. Go South on I-95 to I-495 (26.6 miles)
3. Go West on I-495 to Virginia (16 miles)
4. Go South on I-495 to I-95 (14.1 miles)
5. Go South on I-95 until exit 150A (12 miles)